Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM5UP callsign genealogy
Currently held by FLETCHER, MARK C
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by KM5UP's current licensee, walking backwards.
- FLETCHER, MARK Ccancelled 1999-03-22
Successor callsigns
Callsigns held now by people who previously held KM5UP.
- FLETCHER, MARK CTXgranted 2020-06-30